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# Semester 2 Vocab Review

Across
Electrons in the circuit move back and forth about relatively fixed positions; _____ current
What produces acceleration?
Voltage is impressed ____ a circuit
Describe Galileo’s contribution to the science of motion
One of the pair of forces in Newton's 3rd Law
Acceleration does not mean zero _______, the object maintains the _____ it happens to have.
Describe Copernicus’ idea about earth’s motion
When you stand on the ground on one foot instead of two, the pressure you exert on the ground is _____.
_____ = current x voltage
Whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first object. This is called ______.
The potential energy per _____ of charge available to electrons moving between terminals is the voltage, or emf.
The force that acts between materials that touch as they move past each other
Only the electric field, not the electrons, travel at the _______.
The combination of all forces acting on an object is called the _________.
A mutual action between objects
The force of gravity on an object, depends on location
Flows through a circuit
Relationship where a:F
Current = voltage/resistance
Down
Aristotle's concept of motion
Inverse relationship: If acceleration goes up, what goes down?
The property of a body to resist changes to its state of motion
Force is a ______.
Is a push or a pull
Force equal in strength and opposite in direction to the action force
If air resistance is negligible, and the objects are in free fall, then falling objects should _____ equally.
Will be the same magnitude as your push, oppositely directed producing a zero net force.
The power company does not supply electrons, it supplies _____.
1 _____ = 1 volt / 1 ohm
If mass and force are tripled, what is the net effect on acceleration?
Charge always flows in one direction
Upward force that balances the weight of an object on a surface; means perpendicular to.
Represents the amount of energy consumed in 1 hour at the rate of 1 kilowatt.
Newton's description of the relationship between force, mass and acceleration: F=ma
Examples of ____ sources include: Dry cells, wet cells and generators.
The amount of space that matter occupies in cc's, meters cubed or liters
The quantity of matter in an object
Tiny electronic device that acts as a one-way valve to allow electron flow in only one direction.
SI unit for force
When a net force acts on an object, its acceleration depends on the objects _____.